Improvement in carding - en gin es



UNITED STATES PATENT OEEICE.

JOHN BOYD, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT 1N CARplNG-ENGINES.

Specification forming part of Letters Patent No. 24,092, dated May 24, 1859.

` ing of the doigter-cylinder; andv it consists in a novel arrangement and combination of rollers for removing the fiber, instead of a comb.

A represents the doffing-cylinder of any cardingengine, which is generally about twenty (20) to twenty-four inches in diameter, revolving as shown by the arrows. I .place at B and C two rollers so geared as just to come in Contact With the fibrous material as it is carried around by the doingcylinder. The roller B is about one and onefourth (l) of an inch diametenand is composed of an iron roller Wrapped with flannel or felt .and outside of this with thin leather.- The lower roller B is made of iron, and is of the same diameter. These two rollers, as already stated, just touch thev fibrous material on the doiiing-cyiinder as it revolves. These rollers B and C revolve in the directions shownby their arrows. D and E are wooden scrap ers, which lare curved to fit the curve of the rolls, and are lined with flannel or felt. object of these is to remove fromand to clear the doffing-cylinder of the fibrous mattei' that is carried by it. lt is intended as a substip tute Jfor the ordinary comb.

The operation of my covered roller B and the roller C, in connection with the Scrapers D and E, when combined .with the doier-cyl'- inder of a carding-engine, is to strip off all the fibrous material and discharge it from the machine. It has the advantage over the comb lof regularity of movement, increased eiiiciency, greater durability, and economy.

` Having thus described my improvement, what I desire to claim as my invention is- The combination of the rollers B and C and f Scrapers D and E, for stripping the ordinary dotling-cylinder of a carding-engine, the whole Y being constructed and arranged substantially I as above described.

v JOHN BOYD.

Witnesses:

J. H. B. JENKINS, CHAS. F. HELFFRECHT.

The 

